Spatial multiuser access with MIMO smart antennas for OFDM systems

J. Li, Khaled Letaief, Z. Ma, Z. Cao

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Indoor wireless communication systems have grown rapidly because of their clear advantages such as mobility, flexibility, and inexpensive network reconfiguration. In order to offer higher data rates approaching those provided by wired LANs, a combined OFDM/SDMA-based approach is an effective solution for increasing the system capacity and spectral efficiency. However, in multi-user environments, the system performance is limited by co-channel interference. Multi-input-multi-output (MIMO) smart antennas with prior knowledge of the channel at the transmitter is another promising technique for providing significant increase in system capacity and performance in wireless communication systems. In this paper, we investigate the use of smart antennas at both the base and mobile stations, operating jointly, to maximize the SINR of each user before multiuser detection. By doing so, the performance of multi-user detection is significantly improved.

Original languageEnglish
Pages (from-to)1553-1557
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume3
Issue number54ND
Publication statusPublished - 2001
Externally publishedYes

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ASJC Scopus subject areas

  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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